在belongsToMany关联中获得未知列的顺序

Question

我有Channel，ChannelUser和Conversation三种型号。我正在尝试从Channel模型中获取所有对话，但是遇到了一个未知的列问题（（SequelizeDatabaseError：“字段列表”中的未知列'Conversations-> ChannelUser.ConversationId'） ..>]

这些是我在模型中使用的关联，

频道模型

    static init(sequelize, DataTypes) {
        return super.init(
            {
                name: DataTypes.STRING(),
            },
            {
                sequelize,
                freezeTableName: true
            }
        );
    }

    static associate(models) {
        this.channelUser = this.hasMany(models.channelUser, { foreignKey: 'channelId' });
        this.conversation = this.belongsToMany(models.conversation, {
            through: {
                model: models.channelUser
            },
            foreignKey: 'channelId',
            otherKey: 'id'
        });
    }
ChannelUser Model

    static init(sequelize, DataTypes) {
        return super.init(
            {
            },
            {
                sequelize,
                freezeTableName: true
            }
        );
    }

    static associate(models) {
        this.channel = this.belongsTo(models.channel, { foreignKey: 'channelId' });
        this.user = this.belongsTo(models.user, { foreignKey: 'userId' });
        this.conversation = this.hasMany(models.conversation, {
            foreignKey: 'channelUserId',
        });
    }
会话模型

    static init(sequelize, DataTypes) {
        return super.init(
            {
                message: DataTypes.TEXT()
            },
            {
                sequelize,
                freezeTableName: true
            }
        );
    }

    static associate(models) {
        this.channelUser = this.belongsTo(models.channelUser, { foreignKey: 'channelUserId' });
    }
我也共享ER图以供参考，

这些是我参考的资源

1. Sequelize Find belongsToMany Association
2. Sequelize findAll with belongsToMany association
3. How to disambiguate between multiple associations between the same models in Sequelize
4. https://sequelize.org/master/class/lib/associations/belongs-to-many.js~BelongsToMany.html
5. https://sequelize.readthedocs.io/en/v3/api/associations/belongs-to-many/

我有三个模型Channel，ChannelUser和Conversation。我正在尝试从Channel模型获取所有对话，但遇到了一个未知的列问题（SequelizeDatabaseError：Unknown column'...

Answer 1

我认为，您在这里有一个糟糕的belongsToMany连接...假设很多对很多，您没有那个...通道用户表应该只连接通道和用户...您应该有一个多对多的用户对话连接表...并且一个频道本身只是对话中的hasMany，因为对话实际上只能属于一个频道。